Pls 2 questions 24 points

1.if the dna molecule is so similar among all living things (the pairings are always the same and that there are only six components that make up dna), explain why is there so much diversity of life.
(type own answer in detailed explanation.)

2.if there were 10 bases of thymine in one strand of your model of dna, how many adenine bases would there be in the complementary strand?
(type own answer in detailed explanation.)

who knows

explanation:

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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